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yarga [219]
2 years ago
6

If there are 80 shirts - 30%are blue and 40%are red how many are white

Mathematics
2 answers:
sergij07 [2.7K]2 years ago
8 0

Answer:

24

Step-by-step explanation:

30%+40%=70%

100%-70%= 30%

what's 30% of 80?

80×0.3= 24

sdas [7]2 years ago
7 0
30% of 80 is 24.
40% of 80 is 32.

that is 56 shirts combined with blue and red shirts. 80 - 56 is 24 shirts :)
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Express the fractions 1/2, 3/16, and 7/8 with an LCD
12345 [234]
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6 0
3 years ago
Find the value of x.<br> If necessary, you may learn what the markings on a figure indicate.<br> 74°
marissa [1.9K]

Answer:

x = 61

Step-by-step explanation:

Left hand triangle containing 1 angle of 74

Label the other angle opposite the marked side also as 74

Find the third angle. Call it y.

y + 74 + 74 = 180           Combine like terms

y + 148 = 180                 Subtract 148 from both sides.

y = 180 - 148

y = 32

=============

Now work with the triangle on the right.

label the angle making up the right angle = z

32 + z = 90                             These two angles are complementary = 90

32 - 32 + z = 90 - 32              Subtract 32 from both sides

z = 58                                      Use 58 wherever you see z

x + x + z = 180                         Substitute

2x + 58 = 180                          Subtract 58 from both sides

2x = 122                                  Divide by 2

x = 61

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3 years ago
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